Re: Rotten
You will learn from it. Don’t delete it from your memory. Use it as a life lesson. Take something positive out of your experience. I’m sure you learned a lot about yourself that you didn’t know before he came into your life. You probably also learned what you like, what you want, what you don’t like, what you can’t handle … all these minor yet important things … you must have gotten something that you can use to your benefit in the future out of this experience.
There will be a time in your life when you will look back on this period and not feel a single thing. Just focus on other things and keep yourself busy with your art/fashion designing, friends, family, school, GS 
… trust me, you will move on … but you need to genuinely try and let go. 